[TenTec] Blown up Centurion

[Michael C. Marx]

Well this morning I put a strong light and a fresh pair of eyes on the power supply board. Now it is obvious.  From where the secondary attaches to the power supply board, about an inch toward the front panel, I can see a burnt spot on component side of the board plus one of the traces is vaporized.   So, I guess I need to rebuild or replace that board. It looks like a booger to get out. Any hints on the easiest way to get it out?  Am I thinking correctly when I am surmising that it's probably a bad cap or diode and not transformer related since none of the fuses blew?  Thanks for all of your helpMike WB0SND 
		

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On Sat, Sep 2, 2017 at 11:00 AM -0500, <tentec-request at contesting.com> wrote:










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Today's Topics:

   1. LEDs (Stan Gammons)
   2. Re: LEDs (Gary Follett)
   3. Blown Up Centurion (Michael C. Marx)
   4. Re: Blown Up Centurion (Jeffrey Stricker)


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Message: 1
Date: Fri, 1 Sep 2017 21:51:24 -0500
From: Stan Gammons 
To: Discussion of Ten-Tec Equipment 
Subject: [TenTec] LEDs
Message-ID: <902b5502-9f6a-7347-4ae6-c7998733da7c at charter.net>
Content-Type: text/plain; charset=utf-8; format=flowed

Does anyone know what LEDs were used in the Omni VI?  I have a bad PROC 
indicator LED and wondered if something like this will work 
http://www.mouser.com/ProductDetail/Vishay/TLUG2401/?qs=%2fha2pyFaduh96aJZOPMTcuRo38eRMAa%2f2y4fvZnkcLP3bUzeepnLxA%3d%3d


73

Stan
KM4HQE




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Message: 2
Date: Fri, 1 Sep 2017 22:21:40 -0500
From: Gary Follett 
To: Discussion of Ten-Tec Equipment 
Subject: Re: [TenTec] LEDs
Message-ID: <2F03B84D-9C8B-4966-88AB-24C38221BCA5 at comcast.net>
Content-Type: text/plain;	charset=us-ascii

I have several of these LED's.

Gary

Sent from my iPad

> On Sep 1, 2017, at 9:51 PM, Stan Gammons  wrote:
> 
> Does anyone know what LEDs were used in the Omni VI?  I have a bad PROC indicator LED and wondered if something like this will work http://www.mouser.com/ProductDetail/Vishay/TLUG2401/?qs=%2fha2pyFaduh96aJZOPMTcuRo38eRMAa%2f2y4fvZnkcLP3bUzeepnLxA%3d%3d
> 
> 
> 73
> 
> Stan
> KM4HQE
> 
> 
> _______________________________________________
> TenTec mailing list
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> http://lists.contesting.com/mailman/listinfo/tentec



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Message: 3
Date: Sat, 2 Sep 2017 05:35:12 +0000 (UTC)
From: "Michael C. Marx" 
To: "tentec at contesting.com" 
Subject: [TenTec] Blown Up Centurion
Message-ID:
	<98AAA24771E6CC74.6A5BBBB3-44E4-4BBE-B6A3-62F619B19BB2 at mail.outlook.com>
	
Content-Type: text/plain; charset=UTF-8


	
		
		
	
		
		Well I was using my Centurion tonight in the CW Open. ?All was fine until ....BANG! ?When I went to test it later, there was no plate voltage. I don't see anything obvious. ?I pulled the tubas and still no plate voltage. ?Testing the secondary of the power transformer showed 50 ohms across the secondary and 1 megohm plus from either end to ground. I haven't tested further. ?Anybody have any suggestions?
73?Mike WB0SND?
		

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Message: 4
Date: Sat, 2 Sep 2017 07:58:20 -0400
From: Jeffrey Stricker 
To: tentec at contesting.com
Subject: Re: [TenTec] Blown Up Centurion
Message-ID: <9dfc29db-fe75-8113-a229-8699c7c66536 at pasty.net>
Content-Type: text/plain; charset=utf-8; format=flowed

First, make sure all filter caps are discharged. Next I would check all 
HV rectifier diodes ... then we'll see where we go from there.

On 9/2/2017 1:35 AM, Michael C. Marx wrote:
> 	
> 		
> 		
> 	
> 		
> 		Well I was using my Centurion tonight in the CW Open. ?All was fine until ....BANG! ?When I went to test it later, there was no plate voltage. I don't see anything obvious. ?I pulled the tubas and still no plate voltage. ?Testing the secondary of the power transformer showed 50 ohms across the secondary and 1 megohm plus from either end to ground. I haven't tested further. ?Anybody have any suggestions?
> 73?Mike WB0SND
> 		
>
> 		Get Outlook for iOS
> 	
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec

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End of TenTec Digest, Vol 177, Issue 2
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